Advances in research on the effect of elevated ozone concentration on insects

Key Words：O3, phloemfeeding insect, chewing insect, natural enemy

Abstract：      Ozone (O₃) is one of the most harmful air pollutants. The global atmospheric concentration of ozone has risen from less than 10 ppb (part per billion) a century ago to 40 ppb today and will continue to increase at an annual rate of 1%-2%. Levels of atmospheric O₃ are anticipated to reach 68 ppb by 2050. Due to alterations in plant quality, the preference, behavior, growth and life history of herbivorous insects are influenced by elevated O₃ levels. Elevated O₃ impacts on insect behaviors by changing semiochemicals. Consequently interactions between herbivores and the next trophic levels are greatly affected. In this paper, we review advances in domestic and foreign research on the effects of elevated ozone concentration on phloem\|feeding insects, browsing insects and their natural enemies and discuss prospects for future research in this area.